EP0557482B1 - Element de filtrage lavable a contre-courant - Google Patents

Element de filtrage lavable a contre-courant Download PDF

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Publication number
EP0557482B1
EP0557482B1 EP92918646A EP92918646A EP0557482B1 EP 0557482 B1 EP0557482 B1 EP 0557482B1 EP 92918646 A EP92918646 A EP 92918646A EP 92918646 A EP92918646 A EP 92918646A EP 0557482 B1 EP0557482 B1 EP 0557482B1
Authority
EP
European Patent Office
Prior art keywords
filter element
valve
pct
filter
bores
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP92918646A
Other languages
German (de)
English (en)
Other versions
EP0557482A1 (fr
Inventor
Glenn Höhle
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dr Mueller AG
Original Assignee
Dr Mueller AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dr Mueller AG filed Critical Dr Mueller AG
Publication of EP0557482A1 publication Critical patent/EP0557482A1/fr
Application granted granted Critical
Publication of EP0557482B1 publication Critical patent/EP0557482B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
    • B01D29/13—Supported filter elements
    • B01D29/15—Supported filter elements arranged for inward flow filtration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/62—Regenerating the filter material in the filter
    • B01D29/66—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/62—Regenerating the filter material in the filter
    • B01D29/66—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
    • B01D29/668—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with valves, e.g. rotating valves for coaxially placed filtering elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/88—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices
    • B01D29/92—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for discharging filtrate
    • B01D29/925—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for discharging filtrate containing liquid displacement elements or cores

Definitions

  • the invention relates to a backwashable filter element for installation in a pressure vessel, consisting of a filter fabric, which surrounds a support body made of perforated tubes and a central tube for removing the filtrate, and a head part.
  • a filter element of the type is known from CH-A-655859.
  • the known filter element which is suitable for residual volume filtration, consists of a central tube which is closed over its entire length. A filtrate is discharged through the central tube and, after the filtration has ended, a backwashing medium is fed in against the direction of filtration for cleaning the filter media.
  • a backwashing medium is fed in against the direction of filtration for cleaning the filter media.
  • the central tube is surrounded by perforated tubes.
  • the filtrate can only be removed via the lower opening of the central tube. This has the disadvantage that the capacity of the filter is severely limited by the limited lumen of the central tube, and the speed and efficiency of the backwashing are also very limited.
  • the object of the invention is to increase the performance of a filter element of the type and at the same time to enable drying and dry discharge of a filter cake.
  • the central tube is expediently connected to the openings of the tubes serving as support tubes by means of one or more bores or channels. This has the advantage that the filtration performance can be increased considerably. and a large backwashing performance is available.
  • the valve can be a diaphragm valve or a ball valve.
  • the pressure control in combination with a diaphragm valve is particularly useful.
  • the filter element consists of a filtration part 1 and a head part 2.
  • the filtration part 1 has a central tube 3, around which perforated tubes 4, 4 'are arranged as support elements, which are surrounded by a fabric 5 as filter medium, which is attached in a known manner.
  • the head part 2 consists of a plate 6, which is provided with a bore 7 and a bore 8 and a seat 9. The bores 7 and 8 can be closed by an inflatable membrane 10 in the seat 9.
  • the membrane 10 is formed as part of a membrane valve.
  • the upper part of the head 2 forms a flange 11 which serves to fasten the entire filter element.
  • the filter element is closed by a base plate 12 with a central opening.
  • FIG. 2 A variant of the head part 2 is provided in FIG. 2.
  • a plate 6 ' is provided with a lower bore 7' and an upper bore 8 'and with a seat 9'.
  • a ball 13 is provided in the seat 9 'for closing the seat 9' and functions as part of a ball valve.
  • Fig. 3 the left part of the head 2 of Fig. 1 is shown.
  • the valve is designed as a double diaphragm valve with a support element 14.
  • FIG. 4 is a variant according to FIG. 1, but with only one support element.
  • the filter element according to the invention When the filter element is in operation, during the filtration phase, the filter element according to the invention is provided in a pressure vessel, being completely immersed in a slurry. Due to the pressure difference inside and outside the filter element, the filtrate flows through the filter medium 5, on which a filter cake made of solids is deposited. The filtrate is now able to pass down through the pipes 4, 4 'into the central pipe 3 to drain or to escape via the pressure-controlled valve in the head part 2. The direction of filtration is indicated by arrows.
  • a backwashing agent which can be a gas or a liquid, is fed to the filter element over the entire cross section of the head 2 against the direction of filtration.
  • the backwashing agent penetrates down through the central tube 3 and through the filter means 5 from inside to outside via the tubes 4, 4 '. If necessary, the amount of the backwashing agent can be drastically increased by opening the valve in the head part 2. In this case, it is possible to act directly on the pipes 4, 4 and thus supply the fabrics with any desired amount of backwashing agent.
  • the advantage of the filter candle according to the invention is that an individual filter element can be controlled through all channels, through the central tube and the support tubes and can be operated with greater flow rate and lower resistance.
  • a filter cake is only dried over the central tube by blowing back, for example by means of a drying gas, whereby the filter candle can also be completely emptied.
  • central pipes and support pipes can be blown back with a high flow rate and less resistance.
  • the control of the channels can be controlled in a known manner by check valves taking into account the pressure and flow conditions prevailing in the filter container.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Filtration Of Liquid (AREA)
  • Filtering Materials (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
  • Ink Jet (AREA)
  • Filters And Equalizers (AREA)
  • Burglar Alarm Systems (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Fats And Perfumes (AREA)

Claims (6)

  1. Elément filtrant lavable à contre-courant destiné à être monté dans un récipient sous pression et comprenant un tissu filtrant (5) qui entoure un corps d'appui composé de tubes perforés (4, 4') et d'un tube central (3) destiné à l'évacuation du filtrat, et une partie supérieure (2), caractérisé en ce qu'il est prévu dans la partie supérieure (2) de l'élément filtrant au moins un perçage (7) tourné vers les ouvertures supérieures des tubes (4, 4'), un perçage (8) tourné vers la bride (11) et un logement (9) destiné à recevoir un dispositif de commande de pression.
  2. Elément filtrant selon la revendication 1, caractérisé en ce que le dispositif de commande de pression est conçu comme une soupape.
  3. Elément filtrant selon la revendication 2, caractérisé en ce que la soupape est pourvue d'une membrane (10).
  4. Elément filtrant selon la revendication 2, caractérisé en ce que la soupape est pourvue d'une bille (13).
  5. Elément filtrant selon la revendication 2, caractérisé en ce que la soupape est conçue comme un clapet anti-retour.
  6. Elément filtrant selon la revendication 2, caractérisé en ce que la soupape est pourvue d'une membrane (10) et d'un élément d'appui (14).
EP92918646A 1991-09-13 1992-09-07 Element de filtrage lavable a contre-courant Expired - Lifetime EP0557482B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH271491 1991-09-13
CH2714/91 1991-09-13
PCT/CH1992/000181 WO1993005860A1 (fr) 1991-09-13 1992-09-07 Element de filtrage lavable a contre-courant

Publications (2)

Publication Number Publication Date
EP0557482A1 EP0557482A1 (fr) 1993-09-01
EP0557482B1 true EP0557482B1 (fr) 1996-01-03

Family

ID=4239947

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92918646A Expired - Lifetime EP0557482B1 (fr) 1991-09-13 1992-09-07 Element de filtrage lavable a contre-courant

Country Status (8)

Country Link
US (1) US5435911A (fr)
EP (1) EP0557482B1 (fr)
JP (1) JPH06502802A (fr)
AT (1) ATE132387T1 (fr)
DE (1) DE59204932D1 (fr)
DK (1) DK0557482T3 (fr)
ES (1) ES2082498T3 (fr)
WO (1) WO1993005860A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5766467A (en) * 1996-05-31 1998-06-16 Filtrox-Werk Ag Backflushable filter arrangement and filter candle
SE509834C2 (sv) * 1996-09-09 1999-03-15 Bandak As Filterelement för tryckfilter
DE59904674D1 (de) * 1998-09-21 2003-04-24 Drm, Dr. Mueller Ag Kerzenfilterelement
CN102536144B (zh) * 2011-12-30 2015-02-25 中国石油天然气股份有限公司 煤层气双通道洗井阀
US10406458B1 (en) 2018-03-23 2019-09-10 Blue Skies Global LLC Regenerative media filtration
US11065566B2 (en) 2018-03-23 2021-07-20 Blue Skies Global LLC Regenerative media filtration
US11167226B2 (en) 2018-03-23 2021-11-09 Blue Skies Global LLC Regenerative media filtration
CA3044946A1 (fr) 2018-09-17 2020-03-17 McFarlen Engineering Ltd. Element de soutien du filtre et methode d`utilisation

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1329171A (en) * 1920-01-27 Strainer eqr pumps
US3382978A (en) * 1965-05-17 1968-05-14 Rosaen Filter Co Self-cleaning filter device
US3574509A (en) * 1969-02-14 1971-04-13 Zurn Ind Inc Backwash filter
US4041592A (en) * 1976-02-24 1977-08-16 Corning Glass Works Manufacture of multiple flow path body
NO153677C (no) * 1981-06-01 1986-05-07 Mueller Drm Ag Filterelement.
US4695375A (en) * 1986-05-27 1987-09-22 Tyler Truman V Self-contained hydraulically operable water purifier
GB8620468D0 (en) * 1986-08-22 1986-10-01 Atomic Energy Authority Uk Liquid treatment apparatus
US4752403A (en) * 1987-04-01 1988-06-21 Allred Jack D Water recovery device
US4919801A (en) * 1988-01-07 1990-04-24 Hobson Jr Russell Control system for pump cycling
CH675365A5 (fr) * 1988-08-09 1990-09-28 Asea Brown Boveri
US4973404A (en) * 1989-09-05 1990-11-27 Aurian Corporation Micro/ultra filtration system
US5133858A (en) * 1989-11-30 1992-07-28 Layton Manufacturing Corporation Reverse osmosis water purification apparatus
ES2073058T3 (es) * 1990-04-02 1995-08-01 Mueller Drm Ag Elemento de bujia filtrante.

Also Published As

Publication number Publication date
ATE132387T1 (de) 1996-01-15
EP0557482A1 (fr) 1993-09-01
JPH06502802A (ja) 1994-03-31
DE59204932D1 (de) 1996-02-15
ES2082498T3 (es) 1996-03-16
WO1993005860A1 (fr) 1993-04-01
DK0557482T3 (da) 1996-05-06
US5435911A (en) 1995-07-25

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